Exhaust nozzle for locomotives



Jan. 25, 1927.

E. M. SHANNON EXHAUST NOZZLIE FOR LOCOMOTIVES Filed Nov. 11 1925 2 Sheets-Sheet'l 1,615,238 Jan. 25, 1927- SHANNON EXHAUST NOZZLE FOR LOCOMOTIVES Filed NOV. 11 1923 2 Sheets-Sheet 2 Patented Jan. 25, 1927.

UNITED STATES PATENT OFFICE.

ELLWOOD M. SHANNON, F BALA, PENNSYLVANIA, ASSIGNOR TO THE BALDWIN LOCOMOTIVE WORKS, 0F PHILADELPHIA, PENNSYLVANIA. A CORPORATION OF PENNSYLVANIA.

EXHAUST NOZZLE FOR LOCOMOTIVES.

Application filed November 11, 1925. Serial No. 68,433.

One object of my invention is to make an exhaust nozzle for locomotives in two parts, one part being located within the other part.

A further object of the invention is to so design the internal part of the nozzle that nozzles having diflerent sized openings may be located within the outer part, and either the internal or external parts may be varied without changing the other part.

In the accompanying drawings:

Fig. 1 is a sectional elevation on the line 11, Fig. 2, illustrating my improved twopart nozzle;

Fig. 2 is a plan view;

Fig. 3 is a sectional elevation on the line 3-3, Fig. 4; and

Fig. 4 is a sectional plan View on the line 4-4, Fig. 3.

The main nozzle 1 is made in the present 20 instance as a single casting, having a central exhaust passage 2, and a side exhaust passage 3, which is forked to pass on each side of the central portion of the nozzle. The forks 3 of the side passage 3 extend upward and terminate on the same plane as the central passage, as shown in Fig. 1. The main nozzle has a base flange 4 by which the nozzle is attached to the cylinder saddle or other support.

At the upper end of the main nozzle 1 is a broad flange 5, forming a support for a secondary nozzle 6. This secondary nozzle is made in two parts, one part 7 being located within the other part 8. The part 8 has a base flange 9 bolted to the flange 5 of the main nozzle 1, and is shaped, as shown in Fig. 2, to form a curved housing 10 for the cylindrical inner part 7, and to form side passages 11-11 which align with the passage 3 in the main nozzle, the inner part 7 forming part of the walls of the side passage 11, as shown in Fig. 2.

The inner part 7 of the secondary nozzle has a flange 12 at its base. The part 8 of the nozzle is undercut to receive the flange 12, so that when the parts are assembled, the outer part is secured to the main nozzle, holding the part 7 firmly in position. The opening in the inner part of the secondary nozzle may be of any diameter desired.

The secondary nozzle can be readily detached from the main nozzle, and the inner parts removed and replaced by an inner part having a nozzle-opening of greater or less diameter, and the opening in the outer part 65 may be changed Without changing the inner part.

By making the secondary nozzle in two parts, the nozzle can be readily machined and finished, and if one part becomes 00 cracked or broken, a new part can be readily mounted in position.

I claim:

The combination of a main nozzle, having a central exhaust passage and side exhaust passages; a two-part secondary nozzle, the inner partof said latter nozzle being cylindrical and having a passage aligning with the central passage in the main nozzle and having an external flange at its base, the outer part having a flange and two segmental passages in the main nozzle, and forming a bearing for the innerpart, said bearing extending over the flange oi": the innor part; and means for securing the flange of the outer part to the end of the main nozzle.

ELLVVOOD M. SHANNON. 

